Wow, that is a lot for one of their trade-ins! I don't think I've ever gotten that much credit for a single game in all of my trade-ins. I remember that I was sold a bunch of interesting/rare PS2 titles to a retro game store (Mr. Mosquito, Under the Skin, Mad Maestro, etc.) and got around $90 for them- a week later though when I regretted selling them, I returned to potentially buy them back only to find that they'd already been re-sold.